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Main Cloud Types

• Altocumulus
• Cumulus
• Stratocumulus
• Cumulonimbus
• Cirrus
• Cirrostratus
• Stratus
• Cirrocumulus
• Altostratus
• Nimbostratus

Other Clouds

• Wall cloud (murus)
• Tail cloud (cauda)
• Contrail (homogenitus)
• Lenticularis
• Arcus
• Mamma
• Pannus
• Kelvin-Helmholtz (fluctus)
• Tuba / Twister
• Congestus
• Pileus / Velum
• Fallstreak hole (cavum)
• Asperitas
• Praecipitatio
• Undulatus
• Stratiformis
• Radiatus
• Horseshoe vortex
• Cap / banner clouds
• Fibratus
• Nacreous
• Virga
• Lacunosus
• Uncinus
• Incus
• Vertebratus
• Pyrocumulus (flammagenitus)
• Diamond dust
• Floccus
• Capillatus
• Roll cloud (volutus)
• Humilis
• Castellanus
• Fractus
• Noctilucent
• Distrail
• Perlucidus
• Spissatus
• Humulus
• Duplicatus
• Translucidus
• Mediocris
• The Morning Glory

Optical Effects

• Sundogs
• Rainbow
• Corona
• Crepuscular rays & shadows
• Iridescence
• Halos
• Suncave parry arc
• Upper tangent arc
• Cloudbows / Fogbows
• Glory
• Circumscribed Halo
• Sub-sun
• Sub parhelion
• Sun pillar
• Circumzenithal Arc
• Parhelic circle
• Suprelateral arc
• Green flash
• Circumhorizon Arc
• Lower Sun Pillar
• Wegener arc
• Parry arc
• Infralateral arc
• Moondogs
• Lower Tangent Arc
• Unidentified effect
• fogbow
• parhelion

Miscellaneous

• Our favourites
• Sunset / Sunrise
• Above the clouds
• A classic example
• Clouds that look like things
• At night
• Mixed Sky
• Fog / Mist
• Clouds with names
• Northern/Southern Lights
• Lightning